tweak the fc_mpi test to use both the module mpi.F90 and include mpif.h

test/fc_mpi/src/CMakeLists.txt

@@ -1,5 +1,5 @@
 if (MPI_FOUND)
-    add_executable(example example.f90)
+    add_executable(example example.F90)
 else()
     message(FATAL "MPI not found!")
 endif()

test/fc_mpi/src/example.F90

@@ -1,8 +1,12 @@
 program example
 
+#if defined USE_MPI_MODULE
    use mpi
-
    implicit none
+#else
+   implicit none
+#include "mpif.h"
+#endif
 
    integer :: ierr, rank, num_ranks
    logical :: test_ok

test/test.py

@@ -158,7 +158,12 @@ def test_fc_int64():
 
 
 @skip_on_windows
-def test_fc_mpi():
+def test_fc_mpi_module():
+    configure_build_and_exe('fc_mpi', 'python setup.py --mpi --fc=mpif90  --extra-fc-flags="-D USE_MPI_MODULE"', 'mpirun -np 2')
+
+
+@skip_on_windows
+def test_fc_mpi_include():
     configure_build_and_exe('fc_mpi', 'python setup.py --mpi --fc=mpif90', 'mpirun -np 2')
 
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